Vintage mid-century industrial office ledger or spreadsheet binder

Retro vintage, black industrial machine-age binder or desk ledger. This industrial "Raven" binder is made by Wilson Jones and is a wide sheet format for record, spreadsheets etc. It has black textured vinyl covered covers and metal page clamp.

This office binder measures about 17 3/4" x 11 3/4" overall and has about around 250 or more blank, never used Wilson Jones lined ledger forms. It has some wrinkling and discoloration to the paper linings on the inside of the covers.